Building curtain wall installing and fixing support

The utility model relates to the technical field of building construction. The building curtain wall mounting and fixing bracket comprises a bracket body, including fixed frame, one side of the bottomof the fixed frame is fixedly connected with a wall body framework; a fixing column is fixedly connected to the side, away from the fixing frame, of the wall framework, a mounting groove body is fixedly connected to the side, away from the wall framework, of the fixing frame, a fixing rod is connected into the mounting groove body, a sliding block and a connecting column are fixedly connected tothe surface of the fixing rod, and a fixing plate is fixedly connected to one end of the connecting column. The building curtain wall mounting and fixing bracket is provided; in use, the curtain wallis fixed in the I-shaped groove; through cooperation of the sliding blocks and the sliding grooves, the fixing rods can descend by a certain height, the flatness of the curtain wall can be adjusted, meanwhile, adjustment can be